Sore mouth and tongue is a common disease, although most of them are minor, but it brings a lot of inconvenience to our life, and sore mouth and tongue are easy to recur, so the long-term conditioning of Chinese medicine as a simple and effective method can bring great convenience to people; the following small formula is mainly for the most common sore mouth and tongue caused by yin deficiency and internal fire in the population, after long-term clinical practice can produce better The following recipe is mainly for the most common sores of the mouth and tongue caused by yin deficiency in the population.